Open Asset Import Library Assimp 17c12da File Parser Compression.cpp decompressBlock heap-based overflow

Summaryinfo

A vulnerability described as critical has been identified in Open Asset Import Library Assimp 17c12da. The affected element is the function Assimp::Compression::decompressBlock of the file code/Common/Compression.cpp of the component File Parser. Executing a manipulation can lead to heap-based overflow. The identification of this vulnerability is CVE-2026-19967. The attack may be launched remotely. Furthermore, there is an exploit available. The project was informed of the problem early through an issue report but has not responded yet.

Detailsinfo

A vulnerability has been found in Open Asset Import Library Assimp 17c12da and classified as critical. This vulnerability affects the function Assimp::Compression::decompressBlock of the file code/Common/Compression.cpp of the component File Parser. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect confidentiality, integrity, and availability.

The advisory is shared for download at github.com. This vulnerability was named CVE-2026-19967. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. Technical details and also a public exploit are known.

It is possible to download the exploit at github.com. It is declared as proof-of-concept. The project was informed of the problem early through an issue report but has not responded yet.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Software Library

Vendor

• Open Asset Import Library

Name

• Assimp

Version

• 17c12da

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Submitinfo

Accepted

• Submit #873127: Assimp commit 17c12da Heap-based Buffer Overflow (by TYGLS)

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion